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phos⋅phor
[fos-fer, -fawr] 
| 1. | any of a number of substances that exhibit luminescence when struck by light of certain wavelengths, as by ultraviolet. |
| 2. | Literary. a phosphorescent substance. |
| 3. | Archaic. phosphorescent. |
Phos⋅phor
[fos-fer, -fawr] | the morning star, esp. Venus. |
1625–35; < L Phōsphorus < Gk Phōsphóros the morning star, lit., the light-bringing one, equiv. to phôs light + -phoros bringing; see -phorous
phosphor-
| var. of phosphoro- before a vowel: phosphorate. |
phosphoro-
| a combining form representing phosphorus in compound words: phosphoroscope. |
Based on the Random House Dictionary, © Random House, Inc. 2009.
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| phos·phor (fŏs'fər, -fôr') n.
[Latin Phōsphorus, the morning star; see phosphorus.] |
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Phosphor
Phos"phor\, n. [Cf. G. phosphor. See Phosphorus.]1. Phosphorus. [Obs.] --Addison. 2. The planet Venus, when appearing as the morning star; Lucifer. [Poetic] --Pope. Tennyson.Cite This Source
Main Entry: phos·phor
Pronunciation: 'fäs-f&r, -"fo(&)r
Variant: also phos·phore /-"fO(&)r, -"fo(&)r, -f&r/
Function: noun
: a phosphorescent substance; specifically : a substance that emits light when excited by radiation
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| phosphor (fŏs'fər) Pronunciation Key
Any of various substances that can emit light after absorbing some form of radiation. Television screens and fluorescent lamp tubes are coated on the inside with phosphors. See Note at cathode-ray tube. |
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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phosphor
solid material that emits light, or luminesces, when exposed to radiation such as ultraviolet light or an electron beam. Hundreds of thousands of phosphors have been synthesized, each one having its own characteristic colour of emission and period of time during which light is emitted after excitation ceases. When certain phosphors luminesce from electron excitation, the process is called electroluminescence, and these phosphors are used in the production of television screens and computer monitors. Phosphors excited by ultraviolet, visible, and infrared radiation are used principally in the so-called fluorescent lamps commonly employed for general illumination
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